Is there a way to "prototype" one off molded power connectors? Screw together barrel or screwed together clam shell connectors have that duct tape and baling wire look. With all the work people do to make prototype PCB boards seems like someone would have come up with a way to prototype cable connectors/ends. chuckc On 12/5/2011 9:48 PM, Bob Ammerman wrote: > Actually "extension cords" violate the USB spec. That is because they all= ow > an unlimited cable length, and USB is guaranteed only to 15 feet. Of cour= se > in this power-only application they should be no trouble. However, you mi= ght > find anything longer than about 15 feet very difficult to find. > > -- Bob Ammerman > RAm Systems > > ----- Original Message ----- > From: "Adam Field" > To: "Microcontroller discussion list - Public." > Sent: Monday, December 05, 2011 9:21 PM > Subject: Re: [EE] LONG USB Power Cable > > > =20 >> On Dec 5, 2011 8:19 PM, "Harold Hallikainen" >> wrote: >> =20 >>> To take advantage of low cost USB style power supplies, I did a product >>> that uses an USB mini B connector as the power input. No data goes acro= ss >>> the USB bus. I can find low cost A to mini-B cables out to about 10 fee= t. >>> But, of course, I have a customer that wants to put the wall mount powe= r >>> supply 30 feet away. He doesn't like stringing USB extension cords. So.= ... >>> Anyone know of a 30 foot USB power cable (no data lines required, just >>> ground and +5VDC with an A connector at one end and a mini-B at the >>> other)? >>> >>> =20 >> Check monoprice.com. They have at least 15ft. They also have active >> extensions. >> --=20 >> http://www.piclist.com PIC/SX FAQ& list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> =20 > =20 --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .